Hi,
Currently our app is worked on ionic V-3.
V-4 is way different than V-3 as coding perspective.So we suggest you not to update your app currently otherwise you can get errors.
Also the first command to create ionic app :https://gist.github.com/shubham-99fusion/d8c5d60ab3f3a0bcc1aa5102fee369c0
is just to initialize app.
